Biometric Login Showcase

A demo web app showcasing WebAuthn biometric authentication (fingerprint, Face ID, Windows Hello) using:

• SimpleWebAuthn v13 (browser + server)
• Express 4 + Node.js 20 backend
• React 18 + Vite + Tailwind CSS frontend
• SQLite via better-sqlite3 for persistence
• npm workspaces monorepo

Quick Start (no Dev Container)

npm install
npm run dev

• Server: http://localhost:3001
• Client: https://localhost:5173 (HTTPS required for WebAuthn)

Run Tests (no Dev Container)

npm install
npm run dev

Usage

1. Open https://localhost:5173
2. Click Register and enter a username
3. Browser prompts for your biometric (fingerprint/Face ID/PIN)
4. After registration you're redirected to the Dashboard
5. Click Sign Out, then log back in with Login with Biometric

Architecture